The PRNG implementation in the DNS resolver in Mozilla Firefox (aka Fennec) before 37.0 on Android does not properly generate random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2012-2808.

The Form Autocompletion feature in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 allows remote attackers to read arbitrary files via crafted JavaScript code.

Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header. This vulnerability affects Firefox for iOS < 102.

Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not properly initialize memory for BMP images, which allows remote attackers to obtain sensitive information from process memory via a crafted web page that triggers the rendering of malformed BMP data within a CANVAS element.

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

The SVG filter implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to obtain sensitive displacement-correlation information, and possibly bypass the Same Origin Policy and read text from a different domain, via a timing attack involving feDisplacementMap elements, a related issue to CVE-2013-1693.

When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140.

Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x before 4.5.6 allows remote authenticated users to obtain sensitive private-comment information by leveraging a role as a flag recipient, related to Bug.pm, Flag.pm, and a mail template.

Mozilla Firefox before 27.0 on Android 4.2 and earlier creates system-log entries containing profile paths, which allows attackers to obtain sensitive information via a crafted application.

Mozilla Firefox before 28.0.1 on Android processes a file: URL by copying a local file onto the SD card, which allows attackers to obtain sensitive information from the Firefox profile directory via a crafted application.

An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

Private browsing mode leaves metadata information, such as URLs, for sites visited in "browser.db" and "browser.db-wal" files within the Firefox profile after the mode is exited. Note: This issue only affects Firefox for Android. Other versions and operating systems are unaffected. This vulnerability affects Firefox < 50.

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

If a URL using the "file:" protocol is dragged and dropped onto an open tab that is running in a different child process the tab will open a local file corresponding to the dropped URL, contrary to policy. One way to make the target tab open more reliably in a separate process is to open it with the "noopener" keyword. This vulnerability affects Firefox < 60.

Mozilla Firefox before 26.0 and SeaMonkey before 2.23 on Linux allow user-assisted remote attackers to read clipboard data by leveraging certain middle-click paste operations.

Mozilla Firefox before 45.0 allows remote attackers to bypass the Same Origin Policy and obtain sensitive information by reading a Content Security Policy (CSP) violation report that contains path information associated with an IFRAME element.

When in Private Browsing Mode on Windows 10, the Windows keyboard may retain word suggestions to improve the accuracy of the keyboard. This vulnerability affects Firefox < 72.

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 do not impose certain ECMAScript 6 requirements on JavaScript object properties, which allows remote attackers to bypass the Same Origin Policy via the reviver parameter to the JSON.parse method.

Mozilla Firefox before 38.0 does not recognize a referrer policy delivered by a referrer META element in cases of context-menu navigation and middle-click navigation, which allows remote attackers to obtain sensitive information by reading web-server Referer logs that contain private data in a URL, as demonstrated by a private path component.

The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.

Mozilla Suite 1.7.13, Mozilla Firefox 1.5.0.3 and possibly other versions before before 1.8.0, and Netscape 7.2 and 8.1, and possibly other versions and products, allows remote user-assisted attackers to obtain information such as the installation path by causing exceptions to be thrown and checking the message contents.

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

The WebGL implementation in Mozilla Firefox before 24.0, when NVIDIA graphics drivers are used on Mac OS X, allows remote attackers to obtain desktop-screenshot data by reading from a CANVAS element.

An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability was fixed in Firefox 137 and Thunderbird 137.

Mozilla Firefox before 33.0 does not properly initialize memory for GIF images, which allows remote attackers to obtain sensitive information from process memory via a crafted web page that triggers a sequence of rendering operations for truncated GIF data within a CANVAS element.

Mozilla Firefox before 20.0 and SeaMonkey before 2.17, when gfx.color_management.enablev4 is used, do not properly handle color profiles during PNG rendering, which allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption) via a grayscale PNG image.

Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

The Bugzilla::Search::build_subselect function in Bugzilla 2.x and 3.x before 3.6.13 and 3.7.x and 4.0.x before 4.0.10 generates different error messages for invalid product queries depending on whether a product exists, which allows remote attackers to discover private product names by using debug mode for a query.

Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150.

dom/base/nsJSEnvironment.cpp in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, Thunderbird 3.0.x before 3.0.6 and 3.1.x before 3.1.1, and SeaMonkey before 2.0.6 does not properly suppress a script's URL in certain circumstances involving a redirect and an error message, which allows remote attackers to obtain sensitive information about script parameters via a crafted HTML document, related to the window.onerror handler.

For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.

The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to simply 'AirPods'. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

The User.get method in Bugzilla/WebService/User.pm in Bugzilla 4.3.2 allows remote attackers to obtain sensitive information about the saved searches of arbitrary users via an XMLRPC request or a JSONRPC request, a different vulnerability than CVE-2012-4198.

In Apache Spark 2.1.0 to 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, it's possible for a malicious user to construct a URL pointing to a Spark cluster's UI's job and stage info pages, and if a user can be tricked into accessing the URL, can be used to cause script to execute and expose information from the user's view of the Spark UI. While some browsers like recent versions of Chrome and Safari are able to block this type of attack, current versions of Firefox (and possibly others) do not.

Mozilla Necko, as used in Thunderbird 3.0.1, SeaMonkey, and other applications, performs DNS prefetching even when the app type is APP_TYPE_MAIL or APP_TYPE_EDITOR, which makes it easier for remote attackers to determine the network location of the application's user by logging DNS requests, as demonstrated by DNS requests triggered by reading text/plain e-mail messages in Thunderbird.

The DOMParser component in Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12 loads subresources during parsing of text/html data within an extension, which allows remote attackers to obtain sensitive information by providing crafted data to privileged extension code.

The User.get method in Bugzilla/WebService/User.pm in Bugzilla 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1 has a different outcome for a groups request depending on whether a group exists, which allows remote authenticated users to discover private group names by observing whether a call throws an error.

The format-number functionality in the XSLT implementation in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to obtain sensitive information via unspecified vectors that trigger a heap-based buffer over-read.

Bugzilla/Attachment.pm in attachment.cgi in Bugzilla 2.x and 3.x before 3.6.12, 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1 allows remote attackers to read attachment descriptions from private bugs via an obsolete=1 insert action.

template/en/default/bug/field-events.js.tmpl in Bugzilla 3.x before 3.6.12, 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1 generates JavaScript function calls containing private product names or private component names in certain circumstances involving custom-field visibility control, which allows remote attackers to obtain sensitive information by reading HTML source code.

nsIRDFService in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey before 1.1.15 allows remote attackers to bypass the same-origin policy and read XML data from another domain via a cross-domain redirect.

Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly handle onLocationChange events during navigation between different https sites, which allows remote attackers to spoof the X.509 certificate information in the address bar via a crafted web page.

Mozilla Firefox 3.x before 3.0.6 does not properly implement the (1) no-store and (2) no-cache Cache-Control directives, which allows local users to obtain sensitive information by using the (a) back button or (b) history list of the victim's browser, as demonstrated by reading the response page of an https POST request.

The XrayWrapper implementation in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 does not consider the compartment during property filtering, which allows remote attackers to bypass intended chrome-only restrictions on reading DOM object properties via a crafted web site.